BSA films as sensitive coatings for gas sensors: adsorption properties, application perspectives
V. Lashkaryov Institute of Semiconductor Physics NAS of Ukraine, Kyiv, Ukraine
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Accepted: 21 January 2019
Published online: 7 March 2019
The possibility of application of BSA-based sensitive films for the development of gas sensors is investigated. BSA was deposited on three types of surfaces: fullerenes C60, NiTAA organic film and the silver electrode of a QCM sensor. Two of the resulting films, namely Ag-BSA and C60-BSA, have demonstrated big response values to a range of analytes, good repeatability, reversibility and long-term stability. The adsorption properties of the films strongly depend on the nature of the bottom layer. This opens a possibility to develop protein-based sensitive layers for multisensor arrays with predefined adsorption properties.
© Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature, 2019